diff --git a/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/MultiseatGuacamoleSocketService.java b/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/MultiseatGuacamoleSocketService.java
index aa1786f6f..867c1b5d0 100644
--- a/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/MultiseatGuacamoleSocketService.java
+++ b/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/MultiseatGuacamoleSocketService.java
@@ -29,6 +29,7 @@ import java.util.Comparator;
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
+import org.glyptodon.guacamole.GuacamoleClientTooManyException;
 import org.glyptodon.guacamole.auth.jdbc.user.AuthenticatedUser;
 import org.glyptodon.guacamole.auth.jdbc.connection.ModeledConnection;
 import org.glyptodon.guacamole.GuacamoleException;
@@ -102,7 +103,7 @@ public class MultiseatGuacamoleSocketService
         // Do not allow duplicate use of connection groups
         Seat seat = new Seat(user.getUser().getIdentifier(), connectionGroup.getIdentifier());
         if (!activeGroupSeats.add(seat))
-            throw new GuacamoleResourceConflictException("Cannot connect. This connection is in use.");
+            throw new GuacamoleClientTooManyException("Cannot connect. Connection group already in use by this user.");
 
     }
 
diff --git a/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/SingleSeatGuacamoleSocketService.java b/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/SingleSeatGuacamoleSocketService.java
index b7f092565..383e85f66 100644
--- a/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/SingleSeatGuacamoleSocketService.java
+++ b/extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/socket/SingleSeatGuacamoleSocketService.java
@@ -27,6 +27,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
+import org.glyptodon.guacamole.GuacamoleClientTooManyException;
 import org.glyptodon.guacamole.auth.jdbc.user.AuthenticatedUser;
 import org.glyptodon.guacamole.auth.jdbc.connection.ModeledConnection;
 import org.glyptodon.guacamole.GuacamoleException;
@@ -85,7 +86,7 @@ public class SingleSeatGuacamoleSocketService
         // Do not allow duplicate use of connection groups
         Seat seat = new Seat(user.getUser().getIdentifier(), connectionGroup.getIdentifier());
         if (!activeGroupSeats.add(seat))
-            throw new GuacamoleResourceConflictException("Cannot connect. This connection is in use.");
+            throw new GuacamoleClientTooManyException("Cannot connect. Connection group already in use by this user.");
 
     }